I applaude Arteta on how he is able to standardise Arsenal team. When world cup was over and Jesus Gabriel was injured, many people thought that Arsenal will collapse but it is surprising how they are still performing great even in the absence of Jesus.
Another surprising thing is how Arsenal gradually integrated Jorginho into the team within a short period of time. Though he had some declines but he stood tall and strong.
Arsenal have developed well since last season, but this season they are proving something meaningful for their fans. Of course, that's about the title chances this season and their success leading the table.
In terms of Jorginho, I think Arsenal already had a good form before they signed Jorginho. But with Jorginho, Arsenal have many options in the midfield position when their plans don't go smoothly. Jorginho has good capacity and ability, that makes it easier for Arteta to get good form from him for the team.